Seasonal Allergies
The most common sources of outdoor allergens are pollen, and include:
Tree pollen, which are most common in the spring.
Grass pollen, which are most common in the summer.
Weed pollen, which are most common in the summer and fall.
Ragweed pollen in particular is the most common cause of fall allergy symptoms.
Explore your predisposition to and protection from common outdoor allergens with Living with MTHFR reporting.